package com.heima.article.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;

@Slf4j
@Service
@Transactional
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    // 单页最大加载的数字
    private final static short MAX_PAGE_SIZE = 50;

    @Autowired
    private ApArticleMapper apArticleMapper;
    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;
    @Autowired
    private ApArticleContentMapper apArticleContentMapper;
    @Autowired
    private ArticleFreemarkerService articleFreemarkerService;

    @Override
    public ResponseResult load(ArticleHomeDto dto, Short type) {
        //1.参数校验
        //分页条数的校验
        Integer size = dto.getSize();
        if (size == null || size == 0) {
            size = 10;
        }
        //分页的值不超过50
        size = Math.min(size, MAX_PAGE_SIZE);
        //校验参数
        if (!type.equals(ArticleConstants.LOADTYPE_LOAD_MORE) && !type.equals(ArticleConstants.LOADTYPE_LOAD_NEW)) {
            type = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //频道参数校验
        if (StringUtils.isBlank(dto.getTag())) {
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }
        //时间校验
        if (dto.getMaxBehotTime() == null) dto.setMaxBehotTime(new Date());
        if (dto.getMinBehotTime() == null) dto.setMinBehotTime(new Date());
        //2.查询
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, type);
        //3.结果返回
        return ResponseResult.okResult(apArticles);
    }

    @Override
    public ResponseResult saveArticle(ArticleDto dto) {
        //1.校验参数
        if (dto == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        ApArticle article = new ApArticle();
        BeanUtils.copyProperties(dto, article);
        //2.判断是否存在id
        if (dto.getId() == null) {
            //2.1 不存在id 保存文章 文章配置 文章内容
            save(article);
            //保存配置
            ApArticleConfig articleConfig = new ApArticleConfig(article.getId());
            apArticleConfigMapper.insert(articleConfig);
            //保存内容
            ApArticleContent articleContent = new ApArticleContent();
            articleContent.setArticleId(article.getId());
            articleContent.setContent(dto.getContent());
            apArticleContentMapper.insert(articleContent);
        } else {
            //2.2 存在id  修改文章 文章内容
            updateById(article);
            ApArticleContent articleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, article.getId()));
            articleContent.setContent(dto.getContent());
            apArticleContentMapper.updateById(articleContent);
        }
        //异步调用 生成静态文件上传到minio中
        articleFreemarkerService.buildArticleToMinIO(article, dto.getContent());

        //3.结果返回  文章的id
        return ResponseResult.okResult(article.getId());
    }
}
